Next Article in Journal
Identification of Shearer Cutting Patterns Using Vibration Signals Based on a Least Squares Support Vector Machine with an Improved Fruit Fly Optimization Algorithm
Previous Article in Journal
A New Approach to Detection of Systematic Errors in Secondary Substation Monitoring Equipment Based on Short Term Load Forecasting
Article Menu

Export Article

Open AccessArticle
Sensors 2016, 16(1), 92; doi:10.3390/s16010092

A Compact Fiber Inclinometer Using a Thin-Core Fiber with Incorporated an Air-Gap Microcavity Fiber Interferometer

1
Physics Department, Northwest University, No.229, Taibai Road (North), Xi’an 710069, China
2
International Institute for Urban Systems Engineering, Southeast University, PailouFour No. Two, Nanjing 210096, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Vittorio M. N. Passaro
Received: 13 November 2015 / Revised: 8 January 2016 / Accepted: 8 January 2016 / Published: 12 January 2016
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [4545 KB, uploaded 12 January 2016]   |  

Abstract

A compact fiber-optic inclinometer is proposed and experimentally demonstrated based on a Fabry-Perot interference (FFPI). The sensing head consists of a short segment of thin-core fiber (TCF) following with a piece of hollow-core fiber (HCF). High-order cladding modes have been excited because of core diameter mismatch. A clear interference spectrum has been obtained as the consequence of interference among the reflected core modes and cladding modes. Fringe contrast of the interference spectrum is highly sensitive to fiber bending with direction independence, and good linearity has been observed during the bending range from 1° to 3° with a sensitivity of 2.71 dB/deg. View Full-Text
Keywords: Fabry-Perot interferometer; inclinometer; fringe contrast Fabry-Perot interferometer; inclinometer; fringe contrast
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Li, J.; Qiao, X.; Rong, Q.; Sun, A. A Compact Fiber Inclinometer Using a Thin-Core Fiber with Incorporated an Air-Gap Microcavity Fiber Interferometer. Sensors 2016, 16, 92.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top